Swans

species: 
Mute Swan
scientific name: 
Cygnus olor
notes: 

Yellow neckband with a black for alpha-numeric code (first letter P) and a yellow legring (with the same code). 

note 1 : used codes are : PC51-PC99 + PC00 and all codes with PExx, PHxx, PJxx, PKxx, PNxx, PPxx, PTxx, PUxx, PYxx, PxxA, PxxC (x=is cipher), but also other codes already used.

note 2: during the period 1989-1993 some 250 pulli have been ringed ; during the period 1999-2000 some 200 pulli were ringed ; during the period 2016-2020 some 500 birds will be ringed.   

note 3 :

website sighting submit: 
Tracking Marked Geese and Swans.
email sighting submit: 
colour-ring type: 
Neckband.
colour-ring colour (of the c-ring): 
Yellow [Y]
colour-ring code (of the c-ring): 
Four alpha-numeric code (4 letters/numbers).
countries where ringed: 
The Netherlands.
First letter/number (of the c-ring): 
P